JPH01190959A - Fuel feeder for internal combustion engine - Google Patents
Fuel feeder for internal combustion engineInfo
- Publication number
- JPH01190959A JPH01190959A JP63302366A JP30236688A JPH01190959A JP H01190959 A JPH01190959 A JP H01190959A JP 63302366 A JP63302366 A JP 63302366A JP 30236688 A JP30236688 A JP 30236688A JP H01190959 A JPH01190959 A JP H01190959A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- water
- pump
- suction
- water collection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 93
- 238000002485 combustion reaction Methods 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000002828 fuel tank Substances 0.000 claims abstract description 27
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 241000234435 Lilium Species 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 4
- 238000007654 immersion Methods 0.000 abstract 4
- 230000000052 comparative effect Effects 0.000 abstract 1
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
- F02M37/26—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means
- F02M37/28—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means with water detection means with means activated by the presence of water, e.g. alarms or means for automatic drainage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Abstract
Description
【発明の詳細な説明】
本発明は、内燃機関用の、特に車両のためのディーゼル
機関用の燃料供給装置であって、ポンプ内室から燃料を
分配するための燃料噴射ポンプと、燃料タンクと、燃料
フィードポンプと、ポンプ内室のオーバーフロー開口に
接続された燃料−戻し導管と、燃料−送出導管に配置さ
れた燃料フィルタと、警告装置とを備えており、前記燃
料−フイードポンプが、吸込接続管によって燃料タンク
内に開口する燃料−送出導管に接続されていて、かつ燃
料を燃料タンクから燃料噴射ポンプのポンプの内室内に
供給するようになっており、さらに前記燃料フィルタが
外側で水捕集容器を支持しており、さらに前記警告装置
が、水捕集容器内の所定の水位に達する際に御告シグナ
ルを与えるようになっている形式のものに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is a fuel supply device for an internal combustion engine, in particular a diesel engine for a vehicle, which comprises a fuel injection pump for distributing fuel from a pump interior, a fuel tank, and a fuel injection pump for distributing fuel from a pump interior. , a fuel-feed pump, a fuel-return conduit connected to an overflow opening in the pump interior, a fuel filter disposed in the fuel-delivery conduit, and a warning device, the fuel-feed pump having a suction connection. a fuel delivery conduit opening into the fuel tank and supplying fuel from the fuel tank into the pump interior of the fuel injection pump; The present invention relates to a water collection vessel of the type supporting the water collection vessel and further characterized in that the warning device is adapted to provide a warning signal when a predetermined water level in the water collection vessel is reached.
従来の技術
前述・の形式の燃料供給装置において、燃料フィルタは
、特にディーゼル燃料内に、程度の差はあるが大量に含
んでいるダスト成分及び水を抑制する役目を有している
。この−場合、水はフィルタによって分離されて、フィ
ルタの下側に設けられた水捕集容器内に滴らされる。水
捕集容器内の水位が許容最高位置に達すると、警告装置
が応動して警告ランプをスイッチオンする。BACKGROUND OF THE INVENTION In a fuel supply system of the type described above, a fuel filter has the role of suppressing dust components and water, which are contained in varying degrees and in large amounts, especially in diesel fuel. In this case, the water is separated by the filter and drips into a water collection container provided below the filter. When the water level in the water collection container reaches the maximum permissible level, a warning device reacts and switches on a warning lamp.
この際、ｒライパは即座に、はとんどほぼ２０分以内に
、水を取除かなければならず、このため直接工場に行か
なければならない。フィルタは、水がそれ以上滴下する
際に水をもはや抑制することはできないので、水は燃料
噴射ポンプ内に達してしまう。電気制御機構を備えた分
配型の燃料噴射ポンプは、ポンプ内室内に水が入ると分
配型燃料噴射ポンプを停止するように設計されている。In this case, the ripers have to remove the water immediately, usually within approximately 20 minutes, and therefore have to go directly to the factory. The filter can no longer hold back the water as it drips further, so the water ends up in the fuel injection pump. Distributor fuel injection pumps with electrical control mechanisms are designed to shut down the distributor fuel injection pump when water enters the pump interior.
このため、車両は勅かなくなつま てしｙつ。As a result, the vehicle stalls involuntarily. That's it.
発明が解決しようとする課題
本発明の課題は、燃料フィルタ内の水量が所定量を越え
た際に、すぐに水が噴射ポンプの内室に入らずに、水を
取除くために工場に行くことができる程に走行距離をで
きるだけ長く保つようにすることである。Problems to be Solved by the Invention The problem to be solved by the present invention is to prevent the water from immediately entering the inner chamber of the injection pump when the amount of water in the fuel filter exceeds a predetermined amount, and instead to go to the factory to remove the water. The goal is to keep the mileage as long as possible.
課題を解決するための手段
前述の課題を解決するために講じた手段は、水捕集容器
内に、所定の水位の上側に位置する開口を有する浸漬管
が突入しており、さらに浸漬管が小さな出力の吸込ポン
プに接続されていて、この吸込ポンプの出口が燃料−戻
し導管と接続されていることにある。Means for Solving the Problems The measures taken to solve the above-mentioned problems are that a dipping tube with an opening located above a predetermined water level is inserted into the water collection container; It is connected to a suction pump of low power, the outlet of which is connected to the fuel return line.
発明の効果
本発明の燃料供給装置によって得られる利点は、最高許
容水位を越えた後に、及びこれに関連した警告装置の応
動の後に、水を自動的に吸込んで燃料タンク内に戻すこ
とができ、このことによって、ｒライバは車両が停止し
ないように用心することができることである。さらに、
車両は警告装置の応装置に、適当な工場を探すまで比較
的長い走行距離をなお進むことができる。Effects of the Invention The advantage obtained by the fuel supply device of the invention is that water can be automatically sucked back into the fuel tank after the maximum permissible water level has been exceeded and after the response of the associated warning device. , This allows the driver to take precautions to prevent the vehicle from stopping. moreover,
In response to the warning system, the vehicle can still travel relatively long distances until finding a suitable factory.
本発明の有利な構成によシ、送出導管の吸込接続管が、
燃料タンク内の水量の表面上に浮遊式に配置されている
と許容走行距離が付加的にさらに長くなり、従って燃料
タンク内への水滴下が増大する際に水の吸込みが著しく
避けられる。このような構成によって、内燃機関の運転
は、燃料タンクが７５％の水で満たされる場合にも可能
である。According to an advantageous embodiment of the invention, the suction connection of the delivery conduit comprises:
A floating arrangement on the surface of the water volume in the fuel tank additionally increases the permissible mileage and thus significantly avoids water intake when water drips into the fuel tank. With this configuration, operation of the internal combustion engine is possible even when the fuel tank is 75% full of water.
吸込ポンプは警告装置の応動によってスイッチオンされ
る。しかし有利には、運転時に常に、わずかな量を燃料
フィルタから吸込んでいるが、この燃料フィルタは、水
捕集容器内の許容水位にまだ達しておらず、このことに
よって浸漬管端部の周りを水がまだ流れる限りでは、ろ
過された燃料から成っており、水が許容最高位置を越え
て、浸漬管の開口を取囲む場合に水のみを有するような
ものである。The suction pump is switched on in response to the warning device. However, it is advantageous that during operation, a small amount is always sucked in from the fuel filter, which has not yet reached the permissible water level in the water collection vessel, which causes As long as the water still flows, it consists of filtered fuel and is such that it only has water if it surrounds the opening of the dip tube, beyond the highest allowed position.
吸込ポンプの駆動のための補助エネルギを節約するため
に、本発明の有利な構成により、吸込ポンプがベンチュ
リ管又はペンチュリノズルとして形成されており、該ベ
ンチュリ管又はベンチュリノズルは燃料噴射ポンプのポ
ンプ内室のオーバーフロー開口に直接接続されている。In order to save auxiliary energy for driving the suction pump, an advantageous embodiment of the invention provides that the suction pump is designed as a Venturi tube or a Penturi nozzle, which is connected to the pump of the fuel injection pump. Connected directly to the overflow opening of the inner chamber.
この場合、オーバー７四−開口自体をベンチュリノズル
として形成することもできる。ポンプ内室から連続的に
オーバーフロー開口を介して流出する燃料の流れ速度は
、浸漬管における吸込効果を惹起し、逆上弁を介して常
に、燃料タンクに連続的に再び戻されるわずかな容量を
燃料フィルタから吸込むのに十分である。なお、前記オ
ーバーフロー開口を介して流出する燃料は、オーバーフ
ロー開口に接続された溢流弁によってポンプ内室内で６
〜８バールに維持されている。In this case, the over-hole 74-opening itself can also be formed as a Venturi nozzle. The flow rate of the fuel continuously leaving the pump interior through the overflow opening causes a suction effect in the dip pipe, and a small volume is always continuously returned to the fuel tank via the reversal valve. It is enough to draw from the fuel filter. Incidentally, the fuel flowing out through the overflow opening is pumped into the pump inner chamber by an overflow valve connected to the overflow opening.
~8 bar.
実施例
図工において概略的に示された、車両のディーゼル機関
用の燃料供給装置は、周知の形式の燃料噴射ポンプ１０
、たとえば内燃機関の個々の燃焼シリンダに燃料を分配
するための燃料分配型噴射ポンプを有している。燃料噴
射ポンプ１０にはフィードポンプ１７が組込まれており
、このフィーＹｆンプは共通の駆動軸１２を介して燃料
噴射ボン７°１０のボンゾゾ、ランジャと同期的に駆動
される。フィードポンプ１７は送出導管１−３を介して
燃料タンク１４と接続されており、従って燃料を燃料タ
ンク１４から燃料噴射ポンプ１０のポンプ内室１５内に
搬送し、次いでポンプ内室からポンゾゾランジャが分配
すべき燃料噴射量を吐出する。ポンプ内室１５がオフぐ
−フロー開口１６を介して燃料戻し導管１７に接続され
ており、この燃料戻し導管は燃料タンク１４内に、該燃
料タンク１４の上側に配置された燃料注入導管１８の近
くで開口している。送出導管１３は吸込接続管１９によ
って燃料タンク１４内に突入する。吸込接続管１９は有
利な形式で浮遊式に形成されており、しかもこの吸込接
続管は、燃料タンク１４の底部に沈降された水量の表面
上に常に浮遊し、この場合、吸込開口が燃料によって取
囲まれているようになっている。燃料タンク１４内の水
量は符号２０で示されており、さらにこの水量の上で浮
遊する燃料量、特にディーゼル燃料１は符号２１で示さ
れている。The fuel supply system for a diesel engine of a vehicle, shown schematically in the example drawings, comprises a fuel injection pump 10 of the known type.
, for example, has a fuel distribution injection pump for distributing fuel to the individual combustion cylinders of an internal combustion engine. A feed pump 17 is incorporated in the fuel injection pump 10, and this feed pump 17 is driven via a common drive shaft 12 in synchronization with the fuel injection cylinder 7°10 and the plunger. The feed pump 17 is connected to the fuel tank 14 via the delivery conduit 1-3 and thus conveys the fuel from the fuel tank 14 into the pump interior 15 of the fuel injection pump 10, from which it is then distributed by the pump interior. The required amount of fuel is delivered. The pump interior 15 is connected via an off-flow opening 16 to a fuel return conduit 17, which is connected into the fuel tank 14 to a fuel injection conduit 18 arranged above the fuel tank 14. It opens nearby. The delivery conduit 13 enters the fuel tank 14 by means of a suction connection 19 . The suction connection 19 is advantageously designed in a floating manner, and it always floats above the surface of the water volume settled at the bottom of the fuel tank 14, in which case the suction opening is filled with fuel. It's like being surrounded. The amount of water in the fuel tank 14 is indicated at 20, and the amount of fuel, in particular diesel fuel 1, suspended above this amount of water is indicated at 21.
ダスト成分及び水成分を保持するために、送出導管１３
に燃料フィルタ２２が配置されており、この燃料フィル
タを通って、フィードポンプ１７によって送出される燃
料が案内されて浄化される。この場合、水はフィルタ表
面で分離されて、燃料フィルタ２２の底部に配置された
水捕集容器２３内に滴らされる。ここに集められた水は
符号２４で示されている。残りのフィルタ室は燃料を充
てんされている。送出導管１３内の燃料の流れ方向及び
燃料フィルタ２２の内部の燃料の流れ方向が矢印で示さ
れている。Delivery conduit 13 for holding dust and water components
A fuel filter 22 is arranged at , through which the fuel delivered by the feed pump 17 is guided and purified. In this case, water is separated at the filter surface and drips into a water collection container 23 located at the bottom of the fuel filter 22. The water collected here is indicated by the reference numeral 24. The remaining filter chambers are filled with fuel. The direction of fuel flow within the delivery conduit 13 and within the fuel filter 22 is indicated by arrows.
水捕集容器２３内に警告装置２５が配置されてお９、こ
の警告装置は、水捕集容器２３内の水位が所定の最高値
を越えるとすぐに警告シグナルをレリーズする。最も簡
単な形式では、警告装置２５は電気接点２６から成って
おシ、この電気接点は水２４の許容最高位置の所に配置
されている。電気接点２６は、水捕集容器２３を絶縁さ
れて貫通する接続導線３５及びシグナルランデ２７を介
して定電圧源２８の十極と接続されている。定電圧源２
８の他方の極は、水捕集容器のケーシングと同様にアー
スされている。水２４が電気接点２６の周シを囲むと、
水を介して電流回路が閉じられて、シグナルランプ２７
がスイッチオンされる。警告装置２５を、このような実
施例とは異なる実施例で形成することもできる。A warning device 25 is arranged 9 in the water collection container 23, which releases a warning signal as soon as the water level in the water collection container 23 exceeds a predetermined maximum value. In its simplest form, the warning device 25 consists of an electrical contact 26 placed at the highest permissible position of the water 24 . The electrical contact 26 is connected to ten poles of a constant voltage source 28 via a connecting conductor 35 and a signal land 27 that insulate and pass through the water collection container 23 . Constant voltage source 2
The other pole of 8 is grounded as well as the casing of the water collection vessel. When the water 24 surrounds the electrical contact 26,
The current circuit is closed through the water and the signal lamp 27
is switched on. The warning device 25 can also be formed in other embodiments than these.
燃料フィルタ２２内には上方から浸漬管２９が導入され
ており、この浸漬管は水捕集容器２３内まで侵入してい
て、ここで自由に開口しており、しかも浸漬管の開口は
水捕集容器２３内の最高許容水位の上側、要するに電気
接点２６が配置されている平面の上側に位置している。A dip tube 29 is introduced from above into the fuel filter 22, and this dip tube penetrates into the water collection container 23, where it is freely opened. It is located above the maximum permissible water level in the collecting container 23, in other words above the plane in which the electrical contacts 26 are arranged.
燃料フィルタ２２から突出する浸漬管２９の端部は、逆
止弁３０を介して吸込ポンプ３１に接続されており、こ
の吸込ポンプの出口は燃料戻し導管１７と接続されてい
る。吸込みポンプ３１はベンチュリ管３２として形成さ
れておシ、該ベンチュリ管は燃料戻し導管１７内で極め
てシールされてオーバーフロー開口１６に配置されてお
シ、さらにベンチュリ管の吸込接続部３３は浸漬管２９
と接続されている。有利な形式によシ、燃料噴射ポンプ
１０のケーシング壁における孔によって形成されたオー
バーフロー開口１６を、ベンチュリ管３２又はベンチュ
リノズルとして形成することもできる。 ゛前述の燃
料供給装置の作用形式は以下の通りである：
内燃機関の運転時に、ポンプ内室１５はフィーＶポンゾ
１７によって常に燃料を供給され、しかもこの燃料は送
出導管１３を介して燃料タンク１４から吸込まれる。オ
ーバーフロー開口１６と接続された溢流弁３４によって
、ポンプ内室内の圧力は６〜８バールに維持される。過
剰の燃料量は、オーバーフロー開口１６を介して連続的
に燃料戻し導管１７内に流れて、燃料タンク１４内に戻
される。ベンチュリ管３２を流過する燃料量は周知の形
式でベンチュリ管３２の吸込接続部３３に負圧を形成し
、このことによって浸漬管２９及び逆止弁、３０を介し
て常に少量の容積流を燃料フィルタ２２から吸込み、さ
らに燃料戻し導管１γを介して再び燃料タンク１４に戻
される。燃料供給装置が秩序正しく作業する間は、この
少量の容積流は燃料から成っている。The end of the dip tube 29 projecting from the fuel filter 22 is connected via a check valve 30 to a suction pump 31 , the outlet of which is connected to the fuel return conduit 17 . The suction pump 31 is designed as a Venturi tube 32, which is arranged in a sealed manner in the fuel return conduit 17 at the overflow opening 16, and the suction connection 33 of the Venturi tube is connected to the dip tube 29.
is connected to. Advantageously, the overflow opening 16 formed by a hole in the housing wall of the fuel injection pump 10 can also be designed as a Venturi tube 32 or a Venturi nozzle. The mode of operation of the aforementioned fuel supply device is as follows: During operation of the internal combustion engine, the pump interior 15 is constantly supplied with fuel by the feed pump 17, and this fuel is supplied via the delivery line 13 to the fuel tank. It is sucked in from 14. By means of an overflow valve 34 connected to the overflow opening 16, the pressure within the pump interior is maintained at 6 to 8 bar. Excess fuel quantity flows continuously through the overflow opening 16 into the fuel return conduit 17 and is returned into the fuel tank 14 . The quantity of fuel flowing through the venturi tube 32 creates a negative pressure in the suction connection 33 of the venturi tube 32 in a known manner, thereby ensuring a constant small volumetric flow through the dip tube 29 and the check valve, 30. The fuel is sucked in through the fuel filter 22 and then returned to the fuel tank 14 via the fuel return conduit 1γ. During orderly operation of the fuel supply system, this small volumetric flow consists of fuel.
燃料フィルタ２２は、この燃料フィルタを流過する燃料
からダスト成分及び水成分をろ過して取出す。水成分は
フィルタ表面で分離されて、ここから水捕集容器２３内
に滴らされる。運転時間が長くなると、水捕集容器２３
の底部に集められた水２４が増大する。水が警告装置２
５の電気接点２６のレベルに達すると、シグナルランプ
２７がスイッチオンにされて、ドライバに、水捕集容器
２３を空にする必要があり、このために工場に行かなけ
ればならないことを知らせる。The fuel filter 22 filters and extracts dust components and water components from the fuel flowing through the fuel filter. The water component is separated on the filter surface and dripped into the water collection container 23 from here. When the operating time becomes longer, the water collection container 23
The water 24 collected at the bottom of the tank increases. Water warning device 2
When the level of the electrical contacts 26 of 5 is reached, the signal lamp 27 is switched on, informing the driver that the water collection container 23 needs to be emptied and that he has to go to the factory for this purpose.
ドライバがなお長い走行距離を進むと、燃料からの水が
さらに滴下する際に水捕集容器２３内の水２４の水位が
さらに上昇して、ついに浸漬管２９の開口に達する。こ
の時点から浸漬管２９を介してベンチュリ管３２の吸込
み作用によって燃料だけでなく水も吸込まれて、燃料タ
ンク１４に戻される。水滴下の量に応じて、水捕集容器
２３内の水位がもはや上昇せず、あるいは極めてゆっく
りにしか上昇せず、従ってドライバには、水捕集容器２
３を空にするためにの
適当な工場を探す声に十分な時間が残されている。シグ
ナルランプ２７が点燈する時点から水捕集容器２３が水
で完全に満たされるまでの車両の走行距離は、今や水成
分が燃料噴射−ンゾ１０のポンプ内室１５内にも達し、
そこで燃料噴射ポンプを停止に導くまでの距離において
、比較的長く、数１００−である。この場合、車両に燃
料を補給することはできる。燃料タンク１４内に戻され
る水がすぐには再び燃料フィルタ２２内に達しないため
に、送出導管１３の吸込接続・管１９が浮遊部材として
形成されておシ、この浮遊部材は、その比重に基づいて
燃料タンク１４の底部に集められた水量２０の表面上で
浮遊し、しかし燃料量２１内に完全に沈められている。If the driver travels a longer distance, the level of water 24 in water collection container 23 will rise further as more water from the fuel drips until it finally reaches the opening of dip tube 29. From this point on, not only fuel but also water is sucked in via the dip tube 29 by the suction action of the Venturi tube 32 and returned to the fuel tank 14 . Depending on the amount of water dripping, the water level in the water collection container 23 will no longer rise, or will rise only very slowly, and the driver will therefore have no control over the water collection container 23.
There is plenty of time left to find a suitable factory to empty 3. The distance traveled by the vehicle from the time when the signal lamp 27 lights up until the water collection container 23 is completely filled with water is such that the water component has now also reached the pump interior chamber 15 of the fuel injection valve 10.
Therefore, the distance required to stop the fuel injection pump is relatively long, and is several hundred meters long. In this case, the vehicle can be refueled. Since the water returned into the fuel tank 14 does not immediately reach the fuel filter 22 again, the suction connection/pipe 19 of the delivery conduit 13 is designed as a floating element, which floats depending on its specific gravity. It floats on the surface of the water volume 20 collected at the bottom of the fuel tank 14, but is completely submerged within the fuel volume 21.
有利には、吸込接続管１９の吸込開口が上方に向いてい
て、水と接触しないようになっている。送出導管１３の
吸込接続管１９をこのように形成する際には、タンク内
容物の７５チが水成分である場合にさえ、内燃機関の秩
序正しい燃料供給がなお維持される。Advantageously, the suction opening of the suction connection 19 is directed upwards, so that it does not come into contact with water. When the suction connection 19 of the delivery conduit 13 is formed in this way, an orderly fuel supply of the internal combustion engine is still maintained even if 75% of the tank contents are water-based.
図面は車両のデイゼル機関のための燃料供給装置のブロ
ック制御回路図である。The drawing is a block control circuit diagram of a fuel supply system for a diesel engine of a vehicle.
Claims (4)
から燃料を分配するための燃料噴射ポンプと、燃料タン
クと、燃料−フイードポンプと、ポンプ内室のオーバー
フロー開口に接続された燃料−戻し導管と、燃料−送出
導管に分配された燃料フイルタと、警告装置とを備えて
おり、前記燃料−フイードポンプが、吸込接続管によつ
て燃料タンク内に開口する燃料−送出導管に接続されて
いて、かつ燃料を燃料タンクから燃料噴射ポンプのポン
プ内室内に供給するようになつており、さらに前記燃料
フイルタが外側で水捕集容器を支持しており、さらに前
記警告装置が、水捕集容 器内の所定の水位に達する際に警告シグナルを与えるよ
うになつている形式のものにおいて、水捕集容器（２３
）内に、所定の水位の上側に位置する開口を有する浸漬
管（２９）が突入しており、さらに浸漬管（２９）が小
さな出力の吸込ポンプ（３１）に接続されていて、この
吸込ポンプの出口が燃料−戻し導管（１７）と接続され
ていることを特徴とする、内燃機関用の燃料供給装置。1. A fuel supply device for an internal combustion engine, comprising a fuel injection pump for distributing fuel from a pump interior, a fuel tank, a fuel feed pump, and a fuel return conduit connected to an overflow opening in the pump interior. , a fuel filter distributed in the fuel-delivery conduit, and a warning device, the fuel-feed pump being connected to the fuel-delivery conduit opening into the fuel tank by a suction connection, and Fuel is supplied from a fuel tank into a pump interior of the fuel injection pump, the fuel filter supports a water collection container on the outside, and the warning device is arranged to supply fuel to a water collection container within the water collection container. A water collection vessel (23
) into which a dip pipe (29) with an opening located above a predetermined water level protrudes; furthermore, the dip pipe (29) is connected to a suction pump (31) with a small output, and this suction pump Fuel supply device for an internal combustion engine, characterized in that the outlet of is connected to a fuel return conduit (17).
て形成されており、このベンチユリ管は、燃料−戻し導
管（１７）内に燃料噴射ポンプ（１０）のポンプ内室（
１５）のオーバーフロー開口（１６）の近くで配置され
ており、さらにベンチユリ管の吸込接続部（３３）が逆
止弁（３０）を介して浸漬管（２９）と接続されている
請求項１記載の燃料供給装置。2. The suction pump (31) is designed as a ventilated tube (32), which is inserted into the pump interior (10) of the fuel injection pump (10) in the fuel return conduit (17).
15), further comprising a suction connection (33) of the bench lily pipe connected to the dip pipe (29) via a check valve (30). fuel supply system.
（３２）として形成されている請求項２記載の燃料供給
装置。3. 3. The fuel supply device according to claim 2, wherein the overflow opening (16) itself is designed as a benthic tube (32).
、燃料タンク（１４）内の水量の表面上に浮遊式に配置
されている請求項１から３までのいずれか１項記載の燃
料供給装置。4. 4. Fuel supply according to claim 1, wherein the suction connection (19) of the fuel delivery conduit (13) is arranged floating above the surface of the water volume in the fuel tank (14). Device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3740804A DE3740804C1 (en) | 1987-12-02 | 1987-12-02 | Fuel supply device for an internal combustion engine |
| DE3740804.6 | 1987-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01190959A true JPH01190959A (en) | 1989-08-01 |
Family
ID=6341719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63302366A Pending JPH01190959A (en) | 1987-12-02 | 1988-12-01 | Fuel feeder for internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH01190959A (en) |
| DE (1) | DE3740804C1 (en) |
| FR (1) | FR2624206B1 (en) |
| IT (1) | IT1227662B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016200066A (en) * | 2015-04-10 | 2016-12-01 | マツダ株式会社 | Water level detection device of fuel filter |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4006216A1 (en) * | 1990-02-28 | 1991-09-05 | Mtu Friedrichshafen Gmbh | DEVICE FOR DISCHARGING WATER COLLECTING IN THE CONTAINER OF A WATER SEPARATOR OF AN INTERNAL COMBUSTION ENGINE |
| DE4237651A1 (en) * | 1992-11-07 | 1994-05-11 | Uhde Gmbh | Method and system for supplying at least one consumption point with liquid high-purity chemicals |
| FR2818322B1 (en) * | 2000-12-14 | 2003-06-27 | Filtrauto | FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE AND FUEL FILTER FOR SUCH A DEVICE |
| US6881328B2 (en) * | 2001-05-22 | 2005-04-19 | Mahle Filtersysteme Gmbh | Method for evacuating water that has been separated in a fuel filter and a device for carrying out said method |
| ES2273193T3 (en) * | 2003-09-04 | 2007-05-01 | Michail Fachidis | WATER PRESENCE ALARM SYSTEM IN THE FUEL IN INTERNAL DECOMBUSTION GASOLINE OR DIESEL ENGINES. |
| US7655140B2 (en) * | 2004-10-26 | 2010-02-02 | Cummins Filtration Ip Inc. | Automatic water drain for suction fuel water separators |
| US7368060B2 (en) | 2005-01-14 | 2008-05-06 | Warning Sa | Apparatuses and methods for detecting contaminant in a fuel system |
| SE528145C2 (en) * | 2005-01-25 | 2006-09-12 | Scania Cv Ab | Motor vehicle |
| DE102014009708B4 (en) | 2014-07-02 | 2016-06-16 | Mann + Hummel Gmbh | Fuel filter |
| US11333116B2 (en) | 2017-11-07 | 2022-05-17 | Cummins Filtration Ip, Inc. | Water drain mechanism for filter assemblies |
| DE102018208082A1 (en) | 2018-05-23 | 2019-11-28 | Mahle International Gmbh | Fuel filter for cleaning fuel for an internal combustion engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5727550Y2 (en) * | 1979-01-10 | 1982-06-16 | ||
| US4488970A (en) * | 1981-10-14 | 1984-12-18 | Clark Joseph H | Diesel fuel monitor system, negative pressure type |
| DE3325772A1 (en) * | 1983-07-16 | 1985-01-24 | Robert Bosch Gmbh, 7000 Stuttgart | Liquid filter |
| US4637351A (en) * | 1986-03-28 | 1987-01-20 | Ford Motor Company | System for removal of water from diesel fuel systems |
-
1987
- 1987-12-02 DE DE3740804A patent/DE3740804C1/en not_active Expired
-
1988
- 1988-10-17 FR FR888813641A patent/FR2624206B1/en not_active Expired - Lifetime
- 1988-12-01 JP JP63302366A patent/JPH01190959A/en active Pending
- 1988-12-01 IT IT8822814A patent/IT1227662B/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016200066A (en) * | 2015-04-10 | 2016-12-01 | マツダ株式会社 | Water level detection device of fuel filter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3740804C1 (en) | 1989-07-06 |
| IT1227662B (en) | 1991-04-23 |
| FR2624206B1 (en) | 1990-11-16 |
| IT8822814A0 (en) | 1988-12-01 |
| FR2624206A1 (en) | 1989-06-09 |
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